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Battery Management System (BMS) Service
The Battery Management System (BMS) allows the scan tool to evaluate the
battery charge state, monitor the close-circuit current, register the battery
replacement, and activate the rest state of the vehicle.
1. This function is not supported by all vehicles. The screens shown in this
section are examples.
2. The sub functions and actual test screens of the BMS vary by vehicle,
please follow the on-screen instructions to make correct option selection.
The vehicle may use either a sealed lead-acid battery or an AGM (Absorbed
Glass Mat) battery. Lead acid battery contains liquid sulphuric acid and can
spill when overturned. AGM battery (known as VRLA battery, valve regulated
lead acid) also contains sulphuric acid, but the acid is contained in glass
mats between terminal plates.
It is recommended that the replacement aftermarket battery has the same
specifications, such as capacity and type, as the existing battery. If the
original battery is replaced with a different type of battery (e.g. a lead-acid
battery is replaced with an AGM battery) or a battery with a different capacity
(mAh), the vehicle may require reprogramming of the new battery type, in
addition to performing the battery reset. Consult the vehicle manual for
additional vehicle-specific information.
Register Battery Replacement
This option displays the mileage reading when the last battery was replaced,
registers the battery replacement after replacing a new battery and informing
the power management system that a new battery has been installed.
If the battery change is not registered, the power management system will
not function properly, which may not provide the battery with enough
charging power to operate the vehicle or limit the functionality of vehicle’s
electrical systems.
Using the
BMW
as an example.
To register the battery exchange
1. Tap the
Service
application button from the MaxiPRO Job Menu.
NOTE
